Is the low-l microwave background cosmic?

Details Is the low-l microwave background cosmic? Is the low-l microwave background cosmic?

2004-03-15

arxiv.org/abs/astro-ph/0403353v3

Phys.Rev.Lett. 93 (2004) 221301

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures; more figures available at: http://www.phys.cwru.edu/projects/mpvectors/ PRL in press version

Scientific paper

10.1103/PhysRevLett.93.221301

The large-angle (low-l) correlations of the Cosmic Microwave Background exhibit several statistically significant anomalies compared to the standard inflationary big-bang model, however no connection has hitherto been drawn between them. Here we show that the quadrupole and octopole are far more correlated (99.97% C.L.) than previously thought. The quadrupole plane and the three octopole planes are remarkably aligned. Three of these planes are orthogonal to the ecliptic at a level inconsistent with gaussian random statistically isotropic skies at 99.8% C.L., and the normals to these planes are aligned at 99.9% C.L. with the direction of the cosmological dipole and with the equinoxes. The remaining octopole plane is orthogonal to the supergalactic plane at >99.9% C.L. In a combined quadrupole-octopole map, the ecliptic plane narrowly threads between a hot spot and a cold spot over approximately 1/3 of the sky, and separates the three strongest extrema (in the south ecliptic hemisphere) from the three weakest extrema (in the north ecliptic hemisphere).

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